The UK Bubble (the stickers as per Haddin's bat in the pics above) have the power bulge as part of their 'unique' feature - a less extreme version of that found in the Menace last season. Not sure if this is the same with the Bubble II, but descriptions from Aussie websites do also describe this - yet to see a clear profile pic if this is the case. In either case, the bat that Haddin is using doesn't seem to have the power bulge from the side profile, so it looks very much like a stickered up bat.
Similarly, Ian Bell endorsed the Menace last year but never had that 'pregnant bat' profile on his blades unlike the bats on retail in the UK.
So, as per most, if not all, pros, they get their favourite batmaker to 'build their bat to their specs' and then get their sponsors to sticker them up in whatever range they want/are promoting. Hence, the shape is usually custom and so most likely is not available on their retail bats.